gland disease vs glandular disease

gland disease and glandular disease both are nouns.

Word	Noun	Adjective	Verb	Adverb
gland disease	Yes	No	No	No
glandular disease	Yes	No	No	No

As nouns, gland disease and glandular disease are synonyms defined as:

gland disease and glandular disease: a disorder of the glands of the body

Other synonyms of gland disease include adenosis, glandular disorder.

gland disease (noun)	glandular disease (noun)
a disorder of the glands of the body	a disorder of the glands of the body